<%@ page language="java" pageEncoding="UTF-8"%>
<%@ page contentType="text/html; charset=UTF-8" %>
<%@ page trimDirectiveWhitespaces="true" %>
<%
response.setHeader("Pragma", "no-cache");  // HTTP 1.0
response.setHeader("Cache-Control", "no-cache,no-store"); // HTTP 1.1
response.setDateHeader("Expires", 0); // prevent caching at the proxy server
%>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
